package com.example.book.controller;

import com.example.book.constant.Constants;
import com.example.book.enums.BookStatusEnum;
import com.example.book.model.BookInfo;
import com.example.book.model.PageRequest;
import com.example.book.model.PageResponse;
import com.example.book.model.Result;
import com.example.book.service.BookService;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpSession;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: Li_yizYa
 * Date: 2025/7/7
 * Time: 10:13
 */
@Slf4j
@RestController
@RequestMapping("/book")
public class BookController {
    @Autowired
    private BookService bookService;



    @RequestMapping(value = "/addBook", produces = "application/json")
    public String addBook(BookInfo bookInfo) {
        log.info("添加图书, bookInfo:{}", bookInfo);
        // 1. 参数校验
        if (!StringUtils.hasLength(bookInfo.getBookName())
                || !StringUtils.hasLength(bookInfo.getAuthor())
                || bookInfo.getCount() == null
                || bookInfo.getPrice() == null
                || !StringUtils.hasLength(bookInfo.getPublish())) {
            return "参数不合法，请重新检查";
        }
        try {
            // 2. 插入数据
            Integer result = bookService.insertBook(bookInfo);
            if (result == 1) {
                return "";
            }
        } catch (Exception e) {
            log.error("数据插入发生异常, e:", e);
        }
        return "数据插入失败，请联系管理员";
    }
    /**
     * 查询图书信息（翻页使用）
     */
    @RequestMapping("/getListByPage")
    public Result<PageResponse<BookInfo>> getListByPage(PageRequest pageRequest, HttpServletRequest request) {
        log.info("获取图书列表, pageRequest:{}", pageRequest);
        // 参数校验省略
        PageResponse<BookInfo> bookInfoPageResponse = new PageResponse<>();
        try {
            bookInfoPageResponse = bookService.getListByPage(pageRequest);
        } catch(Exception e) {
            log.error("获取图书列表失败");
            return Result.fail();
        }
        return Result.success(bookInfoPageResponse);
    }

    /**
     * 根据图书 id 查询图书详情
     */
    @RequestMapping("/queryBookById")
    public BookInfo queryBookById(Integer bookId) {
        log.info("获取图书信息, bookId:{}", bookId);
        // 参数校验，不能小于等于 0
//        if (id == null || id <= 0) {
//            return null;
//        }
        return bookService.queryBookById(bookId);
    }

    @RequestMapping(value = "/updateBook", produces = "application/json")
    public String updateBook(BookInfo bookInfo) {
        log.info("更新图书, bookInfo: {}", bookInfo);
        try {
            Integer result = bookService.updateBook(bookInfo);
            if (result > 0) {
                return "";
            } else {
                return "图书更新失败";
            }
        } catch(Exception e) {
            log.error("更新图书失败, e: ", e);
            return "数据库操作失败";
        }
    }

    @RequestMapping(value = "/deleteBook", produces = "application/json")
    public String deleteBook(Integer bookId) {
        log.info("删除图书, bookId: {}", bookId);
        try {
            BookInfo bookInfo = new BookInfo();
            bookInfo.setId(bookId);
            bookInfo.setStatus(BookStatusEnum.DELETED.getCode());
            Integer result = bookService.updateBook(bookInfo);
            if (result > 0) {
                return "";
            } else {
                return "图书删除失败";
            }
        } catch(Exception e) {
            log.error("删除图书失败, e: ", e);
            return "数据库操作失败";
        }
    }

    /**
     * 批量删除图书
     * @param ids
     * @return
     */
    @RequestMapping("/batchDeleteBook")
    public Boolean batchDeleteBook(@RequestParam List<Integer> ids) {
        log.info("批量删除图书，ids:{}", ids);
        try {
            // 执行 SQL
            bookService.batchDeleteBook(ids);
            return true;
        } catch (Exception e) {
            log.error("批量删除图书失败, ids:{}", ids);
        }
        return false;
    }
}
